You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

I am building myself a simple box right now just because with the crappy weather and being dark all the time I can't be bothered to do much on the car. But come spring time I am going to build something much nicer. I was thinking about the same setup under the rear deck.

It's pretty uneven under there so you would need some sort of flat panel to mount to. I think BSW also have some sort of quick release. The other thing to consider is the depth of your sub. If it was really deep, the box might hang down too far and look wierd.

What I would love to do is create a fiberglass panel to hold my 2 12" free-air Kaption's & somehow open up the rear deck so the sound could get into the cabin cleaner.

I've currently got the 12's in a rather large & cumbersome box (prolly about 1.5 cubes too small for optimum sealed configuration) and it doesn't sound bad but frequency response is cut down cause of the lack of air volume & efficiency is brutal at best. With the seats down, it does improve a bit, but I'm still not impressed.

Who thought getting bass through those back seats would be so difficult!

lets see if understood you,you are thicking of a freeair type of set-up,that can be lefted out the way right??well have thought about a spare tire box??I know you will loss your spare tire,are you sure you what 12s and not 8s??

definately would rather 12's than 8's. I have never been a fan of the sound produced from an 8".

What I want is to be able to utilize the entire trunk's air volume as my box; but I need to find a way to effectively mount the 12's to the rear deck since there isn't enough accessible area to mount to the framework of my rear seats.

I saw the BSW box & was thinking a design like that; only modified for appearance could do what I wanted.

definately would rather 12's than 8's. I have never been a fan of the sound produced from an 8".

What I want is to be able to utilize the entire trunk's air volume as my box; but I need to find a way to effectively mount the 12's to the rear deck since there isn't enough accessible area to mount to the framework of my rear seats.

I saw the BSW box & was thinking a design like that; only modified for appearance could do what I wanted.

I find 8' are better at producing kick type of bass for music like dance or pop while 12' are great for deep bass for music like hiphop.

__________________
-=[ BL/\DES ]=-

All it takes is one bad day to reduce the sanest man alive to lunacy. Thats how far the world is from where i am. just one bad day. - Unknown

You should do what I almost did with my E36. Get a piece of 1inch MDF, use it to separate the trunk from the car and mount your 2 12's there. Seal off your trunk totally, use it as your box. You have the subs made for it already, and you still get most of your trunk space without sacrificing your spare tire. You do not want ANY open air space from your trunk to your cabin. Also, this will attach your subs to your car, meaning you'll feel the lower notes better which will actually make you think you're hearing them.

First, you do not need a box like in that link........ or any "box" for free-air subs. You need to build a flat MDF or fibreglass panel under the back deck and seal it to the deck....... enlarge the factory speaker holes, attach your subs and then that's that.

Ideally, for free-air (or IB) setups, you want to seal off the entire trunk from the cabin so the back pressure wave doesn't leak into the cabin............. but that's not 100% necessary unless you're building the ultimate SQ car. However, you can achieve some of that........... what I did a few years back was take off the rear deck trim panel (top), enlarge the speaker holes to accomodate the 12"ers I was putting in from the underside, bolt the panel to the underside of the rear deck......... then sprayed expanding foam between the rear deck and the panel to seal the panel to the deck in an air-tight manner and finally trimmed out the holes and such when the expanding foam had dried. I then put a layer of sound deadening on the top of the deck and that was that. It worked rather well for what it was and is TOTALLY DIY-er friendly.

First, you do not need a box like in that link........ or any "box" for free-air subs. You need to build a flat MDF or fibreglass panel under the back deck and seal it to the deck....... enlarge the factory speaker holes, attach your subs and then that's that.

Ideally, for free-air (or IB) setups, you want to seal off the entire trunk from the cabin so the back pressure wave doesn't leak into the cabin............. but that's not 100% necessary unless you're building the ultimate SQ car. However, you can achieve some of that........... what I did a few years back was take off the rear deck trim panel (top), enlarge the speaker holes to accomodate the 12"ers I was putting in from the underside, bolt the panel to the underside of the rear deck......... then sprayed expanding foam between the rear deck and the panel to seal the panel to the deck in an air-tight manner and finally trimmed out the holes and such when the expanding foam had dried. I then put a layer of sound deadening on the top of the deck and that was that. It worked rather well for what it was and is TOTALLY DIY-er friendly.